Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 815 · 40 sums

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

1. 1.What amount will ₹30000 grow to in 2 years at 12% per year compound interest (in ₹)?
2. 2.Find the compound interest on ₹12400 at 5% per year for 2 years, compounded every year (in ₹).
3. 3.What amount will ₹36800 grow to in 3 years at 25% per year compound interest (in ₹)?
4. 4.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹34000 at 5% per year for 2 years, compounded every year (in ₹).
6. 6.What amount will ₹8400 grow to in 2 years at 15% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹2500 at 4% per year for 1 year, compounded every year (in ₹).
8. 8.Find the compound interest on ₹5900 at 20% per year for 1 year, compounded every year (in ₹).
9. 9.A town has 57500 people. The population grows by 12% every year. What will the population be after 2 years?
10. 10.What is the difference between the compound interest and the simple interest on ₹24800 at 25% per year for 2 years (in ₹)?
11. 11.A scooter is worth ₹27500. Its value falls by 4% every year. What will it be worth after 2 years (in ₹)?
12. 12.Find the compound interest on ₹42000 at 15% per year for 2 years, compounded every year (in ₹).
13. 13.Find the compound interest on ₹56000 at 5% per year for 2 years, compounded every year (in ₹).
14. 14.What is the difference between the compound interest and the simple interest on ₹7600 at 5% per year for 2 years (in ₹)?
15. 15.A scooter is worth ₹4800. Its value falls by 15% every year. What will it be worth after 1 year (in ₹)?
16. 16.What amount will ₹55000 grow to in 2 years at 12% per year compound interest (in ₹)?
17. 17.Find the compound interest on ₹46900 at 5% per year for 1 year, compounded every year (in ₹).
18. 18.What amount will ₹10000 grow to in 2 years at 8% per year compound interest (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹24000 at 10% per year for 2 years (in ₹)?
20. 20.A town has 34400 people. The population grows by 10% every year. What will the population be after 1 year?
21. 21.What is the difference between the compound interest and the simple interest on ₹20000 at 8% per year for 2 years (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹45600 at 25% per year for 2 years (in ₹)?
23. 23.What amount will ₹23400 grow to in 1 year at 8% per year compound interest (in ₹)?
24. 24.What is the difference between the compound interest and the simple interest on ₹45000 at 4% per year for 2 years (in ₹)?
25. 25.What is the difference between the compound interest and the simple interest on ₹33500 at 20% per year for 2 years (in ₹)?
26. 26.A scooter is worth ₹26300. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
27. 27.What amount will ₹17500 grow to in 2 years at 12% per year compound interest (in ₹)?
28. 28.What is the difference between the compound interest and the simple interest on ₹19100 at 20% per year for 2 years (in ₹)?
29. 29.Find the compound interest on ₹48400 at 4% per year for 1 year, compounded every year (in ₹).
30. 30.What amount will ₹9500 grow to in 1 year at 15% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹57500 at 4% per year for 1 year, compounded every year (in ₹).
32. 32.What is the difference between the compound interest and the simple interest on ₹41600 at 25% per year for 2 years (in ₹)?
33. 33.What is the difference between the compound interest and the simple interest on ₹37200 at 20% per year for 2 years (in ₹)?
34. 34.Find the compound interest on ₹10000 at 20% per year for 3 years, compounded every year (in ₹).
35. 35.What amount will ₹3900 grow to in 1 year at 12% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹37200 at 4% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹50400 grow to in 2 years at 25% per year compound interest (in ₹)?
38. 38.What amount will ₹32000 grow to in 3 years at 5% per year compound interest (in ₹)?
39. 39.What is the difference between the compound interest and the simple interest on ₹56400 at 5% per year for 2 years (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹7500 at 4% per year for 2 years (in ₹)?

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